December weather forecast
Cisauk, Indonesia

December, the first month of the summer in Cisauk, is still a hot month, with temperature in the range of an average low of 25.7°C (78.3°F) and an average high of 30.5°C (86.9°F).

Temperature

December's climate shows a minor adjustment in average high-temperatures to a still tropical 30.5°C (86.9°F) from November's 31.3°C (88.3°F). December nighttime temperatures hover close to the daytime peak with an average of 25.7°C (78.3°F).

Heat index

In December, the heat index is evaluated at a torrid 37°C (98.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in December is 72%.

Rainfall

In Cisauk, during December, the rain falls for 23.9 days and regularly aggregates up to 104mm (4.09") of precipitation. Throughout the year, in Cisauk, there are 257.1 rainfall days, and 991mm (39.02") of precipitation is accumulated.

Daylight

The month with the longest days in Cisauk, Indonesia, is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:28 and sunset at 17:56. On the last day of December, sunrise is at 05:41 and sunset at 18:11 WIB.

Sunshine

In December, the average sunshine in Cisauk is 9.4h.

UV index

The months with the highest UV index in Cisauk are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.